@SavedByGrace
Perhaps this has been shown in the posts, I don't recall.
A problem that many have in presenting the offer to "Israel" of the OT and that of the NT resolves to how one must consider God's instructions.
To the Jews, repentance, salvation, and right standing was aligned with the devotion to the temple and the festivals and sacrifices of being a "good Jew." Even in this day, that standard is held in many of the more conservative synagogues.
So, when the call goes out to the people of Israel from the Lord as seen in the OP, it has a different contextual understanding that that call in the NT. For recall the Lord telling the woman that the day would come when true worship can occur anywhere (my paraphrasing). However, the power and authority of the temple remained until the cross. And the residual effects impact even the messianic Jews of this day.
The atonement had a far more reaching purpose than just humanity. For John was given to write that it involved the whole Kosmos, not anthropos.
That said, I do not have the same view that you have, nor do I have the same view as the hard line Calvinist thinking, for I look at the OT atonement system and can find room to hold the following principles in which I think the NT also supports.
1) The blood of our Lord was shed for all sin of the Kosmos. Just as the sprinkling of blood was satisfactory for all in the borders of Israel, gentile, slave, visitor, believer, unbeliever, ...
2) The death (the result of Christ baring the sin) and the resurrection only benefit believers. The Scriptures clearly teach that the believer by passes death and is taken from the ceasing of the physical estate into that of the new creation estate while the unbelievers remain at death under the wrath of God.
3) The salvation is granted by God's unmerited favor according to His plan and with the understanding that such salvation comes with terms of service. That is no one is redeemed and then not given a responsibility by the Father.
While the OT and current Jews continue to look to a temple (synagogue) for salvation and being right with God and are driven to again construct and gather for such a Temple, the Scriptures present a new covenant. One based upon the finished work of Christ.
You have ask a very good question. And you can see that, though the posts have all made very good points, there is that element that I share here on this post that needs to be taken into consideration when looking to OT presentations of the offer of salvation. The Jewish covenant was and is still held in trust by the Jews until the time of the Gentiles shall be complete and then they (Jews) will look upon Him who they pierced and mourn. They will have had the 120,000 witnesses and the two righteous in which the killed all. They will come to an understanding that they were wrong.
Now I will quietly slip back and watch.